1 /*
   2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package java.util.stream;
  24 
  25 import java.util.EnumSet;
  26 
  27 public class StreamOpFlagTestHelper {
  28 
  29     /** EnumSet containing stream flags */
  30     private static final EnumSet<StreamOpFlag> allStreamFlags;
  31 
  32     static {
  33         allStreamFlags = EnumSet.allOf(StreamOpFlag.class);
  34         for (StreamOpFlag f : EnumSet.allOf(StreamOpFlag.class))
  35             if (!f.isStreamFlag())
  36                 allStreamFlags.remove(f);
  37     }
  38 
  39 
  40     static EnumSet<StreamOpFlag> allStreamFlags() {
  41         // EnumSet is mutable
  42         return allStreamFlags.clone();
  43     }
  44 
  45     public static boolean isStreamOrdered(Stream<?> s) {
  46         return StreamOpFlag.ORDERED.isKnown(OpTestCase.getStreamFlags(s));
  47     }
  48 }